📄 Description (English)
Microsoft Active Directory Domain Services Privilege Escalation Vulnerability — Microsoft Active Directory Domain Services contains an unspecified vulnerability that allows for privilege escalation.
🤖 AI Executive Summary
CVE-2021-42287 is a critical privilege escalation vulnerability in Microsoft Active Directory Domain Services (CVSS 9.0) that allows authenticated attackers to escalate privileges within AD environments. This vulnerability poses severe risk to Saudi organizations as AD is the foundational identity and access management system for most enterprises. Exploitation requires network access but no user interaction, making it highly exploitable in compromised environments.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 21, 2026 11:17
🇸🇦 Saudi Arabia Impact Assessment
Critical impact across all Saudi sectors relying on Active Directory: Banking sector (SAMA-regulated institutions, payment processing), Government agencies (NCA, ministries), Healthcare (MOH facilities, private hospitals), Energy sector (ARAMCO, utilities), Telecommunications (STC, Mobily, Zain), and Large enterprises. Successful exploitation enables attackers to gain domain admin privileges, compromise entire IT infrastructure, access sensitive data, and establish persistent backdoors. Saudi critical infrastructure operators face elevated risk of cascading failures.
🏢 Affected Saudi Sectors
Banking & Financial Services
Government & Public Administration
Healthcare
Energy & Utilities
Telecommunications
Large Enterprises
Critical Infrastructure
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
9.2
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Apply Microsoft security patches KB5007247 (Windows Server 2016/2019/2022) immediately to all Domain Controllers
2. Prioritize patching in this order: Domain Controllers → Exchange servers → Member servers → Workstations
3. Verify patch installation: Run 'Get-HotFix -Id KB5007247' on all DCs
DETECTION & MONITORING:
4. Enable Advanced Audit Policy: Audit Privilege Use, Audit Account Management, Audit Logon Events
5. Monitor Event ID 4672 (Special Privileges Assigned) and 4688 (Process Creation) for suspicious privilege escalation patterns
6. Deploy SIEM rules to detect unusual Kerberos TGT requests and service ticket anomalies
7. Monitor for lateral movement post-exploitation using network segmentation alerts
COMPENSATING CONTROLS (if immediate patching delayed):
8. Implement strict Group Policy restrictions on service account usage
9. Enable MFA for all privileged accounts and administrative access
10. Restrict network access to Domain Controllers using firewall rules
11. Implement Just-In-Time (JIT) privileged access management
12. Conduct immediate AD security audit for unauthorized privilege escalations
13. Review and revoke unnecessary service account privileges
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تطبيق تصحيحات الأمان من Microsoft KB5007247 (Windows Server 2016/2019/2022) فوراً على جميع Domain Controllers
2. أولويات التصحيح: Domain Controllers → خوادم Exchange → خوادم العضويات → محطات العمل
3. التحقق من التثبيت: تشغيل 'Get-HotFix -Id KB5007247' على جميع DCs
الكشف والمراقبة:
4. تفعيل Advanced Audit Policy: Audit Privilege Use, Audit Account Management, Audit Logon Events
5. مراقبة Event ID 4672 و 4688 للكشف عن أنماط تصعيد امتيازات مريبة
6. نشر قواعد SIEM للكشف عن طلبات Kerberos TGT غير العادية
7. مراقبة الحركة الجانبية باستخدام تنبيهات تقسيم الشبكة
الضوابط البديلة (إذا تأخر التصحيح الفوري):
8. تطبيق قيود Group Policy صارمة على استخدام حسابات الخدمة
9. تفعيل MFA لجميع الحسابات المميزة والوصول الإداري
10. تقييد الوصول للشبكة إلى Domain Controllers باستخدام قواعد جدار الحماية
11. تطبيق إدارة الوصول المميز في الوقت المناسب (JIT)
12. إجراء تدقيق أمان AD فوري للكشف عن تصعيد امتيازات غير مصرح به
13. مراجعة وإلغاء امتيازات حسابات الخدمة غير الضرورية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1.1 - Access Control Policies
ECC 2024 A.5.2.1 - User Registration and De-registration
ECC 2024 A.5.3.1 - Access Rights Review
ECC 2024 A.8.2.1 - User Access Management
ECC 2024 A.9.2.1 - User Responsibility for Password
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Asset Management
SAMA CSF PR.AC-1 - Access Control Policy
SAMA CSF PR.AC-4 - Access Rights Management
SAMA CSF DE.CM-1 - Network Monitoring
SAMA CSF RS.MI-2 - Incident Response Procedures
🟡 ISO 27001:2022
ISO 27001:2022 A.5.2 - Information Security Policies
ISO 27001:2022 A.6.2 - Access Control
ISO 27001:2022 A.8.1 - User Endpoint Devices
ISO 27001:2022 A.8.2 - Privileged Access Rights
ISO 27001:2022 A.8.3 - Information Access Restriction
🟣 PCI DSS v4.0
PCI DSS 2.1 - Default Passwords
PCI DSS 7.1 - Access Control Implementation
PCI DSS 8.1 - User ID Assignment
PCI DSS 8.2 - Strong Authentication
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Microsoft:Active Directory